Clamp



(No Model.)

G. O, BACON.

CLAMP I No. 282,945. Patented Aug. 14, 1883.

* UNITED STATES PATENT OEEIcE;

GEORGE o. BACON, E LYN-N, MASSACHUSETTS.

CLAMP.

SPECIFICATION forming part of Letters Patent No. 292,945, dated August 14, 1883.

Application filed May 5, 1883. (No model.)

To-aZZ whom it may concern:

Be it known-that I, GEORGE 0. Bacon, of Lynn, in the county of 'Essex, State of Massachusetts, have invented a certain new and useful Improvement in Clamps, of which the following is a description sufficiently full, clear, and exact to enable anyperson skilled in the art or science to which said invention appershoes for securing a sack or cover to the up-? p tains to'make and usethe same, reference be- IO ing had to the accompanying drawings, forming a part of this s1 )ecification,in which- Figure 1 1s a vlew representing myimproved clamp in use; Fig.2, an isometrical perspecper to prevent it from being injured in lasti f ing; and it consists in anovel construction and arrangement of the parts, as hereinafter more fully set forth and claimed, by which a cheaper, simpler, and more effective device of this character is produced than is now in ordinary use. I

The nature and operation of the improvement will be readily understood by all con-. versant with such matters from the following explanation, its extreme simplicity rendering an elaborate description unnecessary.

In the drawings, A represents the body, and B the tongue. metal, preferably of spring or elastic steel, and is rectangular in'shape, its ends being rounded, as seen at an. i

An elongated slot, m, is formed in the center of the body, and projecting from one of its ends there is a tongue, B, the tongue and body being integral or composed of a single piece of metal. The tongueis slightlynarrower than the slot, and at its juncture with the body is curved upwardly .and over to form the C- shaped spring d, thence passing downwardly in agradual curve from a to f, and thence upwardlyto its point the center of the tongue, at f, falling below the plane'of the lower Side.

The body is composedof sheet of thebody, or shutting through the body when not in use, as shown in Figs. 2 and 4.

In lasting and finishing the shoe-more especially on the finer kinds of work-a sack or cover, 1), composed of ordinary canvas or cotton cloth, is placed over the top of the uppers to keep them clean and-protect them from injury. Much difficulty has heretofore been experienced in readily attaching this sack so that itwould not become accidentally detached during the process of manufacture; and to overcome this difficulty and furnish a simple, cheap, and effective article for. the purpose for which it is intended, is the object of my invention.

In the use of the improvement the sack or cover D is passed over the top of the upperE, as shown in Fig. 1. The tongue of the clamp is then raised and the clamp pushed on over the edge of the sack and upper until the edge is brought well into spring d,when the tongue is released, and, being forced down by the spring, passes into the slot m, pushing a portion of the sack and the inclosed upper into and through the slot, where they are grasped or become wedged between the sides of the tongue, and sides of the slot, and the sack thereby secured to the upper in a manner which V will be readily obvious without a more explicit description.- The portion of the sack and upper which is forced into the slot, as described, prevents the-clamp from slipping in either direction on the upper, or from becoming detached during the process of lasting or finishing.

It will be understood that any requisite numberof the clamps may be used, and that, when desired, they may be readily detached by raising the tongues from the slots by means of any proper implement passed under the end g.

I do not confine myself strictly to cutting the slot m entirely through the body A, as a portion of the body may be deeply indented toreceive the tongue, and perform substantially the same function as the open slot; neither do I confine myself toany special form of slot.

It will be obvious that by making the tongue and body of one piece a great saving may IOO be efl'ected in the cost of manufacture, and a slot m, in combination with the upper E and better article produced; but, if preferred, the cover D, substantially as shown and described. 10 tongue can be made separately, and attaehed by rivets, or otherwise, to the body near the 7 GEO. C. BACON. 5 spring d.

Having thus explained my invention, What I Witnesses claim is O. A. SHAW,

A clamphaving the body A, tongue B, and L. WHITE. 

